There are 11,905 satellites circling Earth — 7,356 in low orbit — according to the tracking website Orbiting Now. Satellites are critical for communications, navigation, ...

After spending more than five decades in orbit, the final piece of Soviet rocket Cosmos 482 has finally crash-landed on Earth following a ... to withstand up to 300Gs of acceleration," she ...

A 1972 Soviet Venus lander is expected to reenter Earth’s atmosphere this month, possibly crashing intact after 53 years in orbit, scientists say. Skip to main content Sections ...

Yet, Arkisys, the company Barnhart cofounded in 2015, is focusing on low Earth orbit (LEO) — the buzzing region closest to Earth up to altitudes of about 1,200 miles (2,000 km).